Version June 2024
| Property | Internal mammary artery | Saphenous vein |
| Anatomic | ||
| Endothelial fenestrations | Few | Many |
| Intercellular (IC) processes | Many | Few |
| IC junction permeability | Low | High |
| Internal elastic lamina (IEL) | Well defined | Poorly defined |
| Heparan sulfate in IEL/media | High | Low |
| Dependence on vasa vasorum | Minimal | High |
| Valves | Absent | Present |
| Size match with grafted native vessel | Good | Poor |
| Resistance to trauma of harvesting | High | Low |
| Physiologic | ||
| Flow reserve | High | Low |
| Shear stress | High | Low |
| Nitric oxide/prostacyclin production | High | Low |
| Vasomotor response to thrombin | Relaxation | Constriction |
| Vasoconstrictor sensitivity | Low | High |
| Vasodilator sensitivity | High | Low |
| Basic fibroblast growth factor receptors | Few | Many (8xIMA) |
| Lipolysis | Rapid | Slow |
| Lipid synthesis | Less active | More active |
| Lipid uptake | Slow | Rapid |
| Oxidative stress | Low | High |
آیا می خواهید مدیلیب را به صفحه اصلی خود اضافه کنید؟
